chase



-1 10 Model.) 2 Sheets--Shet 1.

F. CHASE.

LASTING MACHINE.

No. 376,368. Patented Jan. 10, 1888.

WITNESSES IN VEJVTOR 262cm; 196M 22, 7w? xw N. PETERS. Pholo-Lilhngmyhar. Washington. D. C.

(No Model.) 2 Sheets-Sl1eet 2.

LASTING M A 0 I N E.

No. 376.368. H Patented Jan. 10, 1888.

5 I II TUNITED" STATE PATENT ()FFICE.

FRANKCHASE, OF BOSTON, MASSACHUSETTS, ASSIGNOR' TO THE CHASE LASTING MACHINE COMPANY, OF SAME PLACE.

" LASTlNGj-MACHINE.

SPECIFICATION forming part of Letters Patent No. 376,368, dated January 10, 1888.

Application filed November 10, 1887. Serial No. 254,526. (No model i To aZZ whom it may concern:

Be it known that I, FRANK CHASE, of Boston, in the county of Suffolk and State of Massachusetts, have invented a certain new and useful Improvement in Machines for Lasting Boots and Shoes, of which the following is a specification.

This improvement has reference to the clasp or device used in lasting-machines to encircle and clasp the heel or toe of the last.

Such a clasp (lettered G) is shown in Figures 2 and 7 of the drawings annexed to my Letters Patent, No. 364,088, of May 31, 1887, and is describedron page 3, lines 27 to 54 of the printed specification of said Letters Patent. This clasp is composed of material which is so fiexibleor pliable that between its ends it can automatically conform to the shape of the toe or heel which it encircles; but at the ends themselves it is held to all intents and purposes rigidly--that is to say, the ends themselves cannot of themselves move to- "ward or away from each other, but must be so be set at correspondingly varying distances apart.

It is, however, extremely inconvenient to vary this adjustment by hand, and it is desirable to so construct and arrange the parts that the ends of the clasp may be capable of automatically varying the distancebetween them, in order that they may automatically accommodate and adjust themselves to lasts of varying widths. It is the object of my present invention to attain, this desirable result. To this end I attach the ends of the clasp to oscillatory or vibrating supports which are free to oscillate toward and away from one another, so that when the toe or heel, as the case may be, of the last'is pressed into the clasp the freely-moving end by that press- 'nre will be drawn up toward and against the sides of the last. These oscillatory supports I .prefer should consist of pivoted arms or rods, and I preferably pivot them to slides movable back and forth in the direction of the length of the machine, and combine with said slides an actuating mechanism whereby they can'be moved and adjusted at pleasure.

The clasp is used in connection with the heel or the toe wipers. In practice these wipers are, for different kinds of work, adjusted so thatthey normally project more or less to the front of their supportingcarriage, according to the'natu re of the work. Itis desirable and,

indeed, necessary to make a corresponding adjustment of the clasp, and it is for this purpose that the slides above referred to have a forward and backward adjustment.

manner in which the same is or may be carried into effect will be readily understood by The nature of my improvement and the i reference to the accompanying drawin s, in

which Fig. l is a frontview of the toe-lasting carriage of a lasting-machine embodying my invention. Fig. 2 is a horizontal sectional view of a portion of the same, showing in plan the clasp and devices connected therewith. Fig. 3 is a sectional side elevation of the slide-adjusting bar and screw. Fig. 4 is a perspective view of the adjusting-screw.

The toe-wiper carriageis in two parts, B D. The lower part, B, is mounted to slide back and forth in ways in the frame A of the machine. The npper part, D, is jointed to the lower part, B, and carries the wipers L and other toe-lasting instrnmentalities. The toelasting carriage and the instrumentalities carried thereby are in fact the counterpart of the toe-lasting carriage described and shown in Letters Patent No. 364,088 aforesaid, save as to the manner of mounting and arranging the toe-clasp G. It therefore will be unnecessary for me to describe the general organization and mode of operation of the parts, and I shall consequently confine my description to the particular improvement in which my present invention resides.

The clasp Gr occupies the, same position be- .neath the wipers L that it does in my said patent, and like the patented clasp it here consists of one or more chains, 28, faced with leather 29, although for the purpose of my present improvement it may consist of any other suitable pliable or flexible material or strip.

The clasp as a whole is in advance of the carriage, there being left between the two a space, as indicated in the drawings, to permit the central part of the clasp to be pushed back, and thus draw upon the ends for the purpose of causing them to close upon the last. In order to permit of this action it is attached by its ends only to the device or devices which support it.

The supporting devices in the present instance consist of arms or supports H, which are pivoted at 1;, so that they may freely oscillate to and from each other. To the free ends of these arms the ends of the clasp G are attached. Set screws or back-stops w in the frame of the'carriage are pivoted, not for the purpose of setting up or moving the ends of the clasp, but simply to prevent undue bodily lateral wabbling of the clasp and its supporting-arms.

The arms H may be pivoted directly to the carriage; but for the reasons hcreinbefore indicated I prefer to pivot them to the ends of bars I, which are seated and adapted to slide in grooves or guideways in the bottom plate of the part D ofthe carriage, so that they may move in a direction lengthwise ofthe machine. The slide-bars can be adjusted in this direction by means of various instrumentalities well known to the skilled mechanic. One convenientinstrumentality, as shown in the drawings, is to place in rear of the slide-bars a sliding adjusting-bar, J, which moves in a groove or guideway at right angles with the path of movement of the slides I, and is provided with inclines 20', which meet and bear against corresponding inclines on the heels of the slides I. By moving the adjusting-bar inward from the position shown in Fig. 2 it will be seen that the slides I will be advanced, carrying with them the clasp. A reverse movement of the adjusting-bar will leave the slide I free to recede.

The movement of the adjusting-bar can be conveniently controlled by means of an adjusting-screw, K, which screws into the carriage, as indicated in Fig. 2.

The outer end of the adjusting-bar is bent down and forked, and is so placed as to straddle the stem of the screw-head and a collar on the screw-stem, all as plainly indicated in Figs. 3 and 4.

I have shown and described the clasp as applied to the toe-wiper carriage. It can, however, in the same way be applied to and used with the heel-wiper carriage for the purpose of clasping in the heel of the last.

Having described my improvement and the best way now known to me of carrying the same into effect, what I claim herein as new and of my own invention is- 1. The combination of the wiper'carriage, the wipers, the freely-oscillatory clasp-supports mounted on said carriage, but disconnected from and movable independently of said wipers, and the flexible or pliable clasp G, attached to said supports by its ends only, substantially as and for the purposes hereinbefore set forth.

2. The combination of the wiper-carriage, the flexible or pliable clasp G, the oscillatory clasp-supports, and the slides to which said supports are pivoted, said oscillatory claspsupports and slides being disconnected from and movable independently of the said wipers, substantially as and for the purposes hereinbefore set forth.

3. The combination of the wiper-carriage, the flexible or pliable clasp G, the oscillatory clasp-supports, the slides to which said supports are pivoted, and the slide-operating adjusting mechanism, said oscillatory clasp-sup ports, slides, and slide operating and adjusting mechanism being disconnected from and movable independently of said wipers, substantially as and for the purposes hereinbefore set forth.

4. The pivoted elaspsupporting arms Iand the flexible or pliable clasp G,in combination with back-stops for preventing under spreading apart of said arms, substantially as herein before set forth.

In testimony whereof I have hereunto set my hand this 7th day of November, A. D. 1887.

FRANK CHASE.

Witnesses:

MARVIN A. OUsTIs, CHAS. HELM.

lOC 

